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  1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Disc Brakes
  5. Channel
  6. 8000 lbs GTW
Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs
Demco

Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs

Part Number: DM8759422
In Stock
$234.84
Retail:$336.86
You Save: $102.02
Brake Actuator
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Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on. 1-800-940-8924 to order Demco brake actuator part number DM8759422 or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (10)
  • Q & A (0)
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Demco Brake Actuator - DM8759422

  • Surge Brake Actuator
  • Disc Brakes
  • Channel
  • 8000 lbs GTW
  • Bolt-On
  • Weld-On
  • Farm Trailer
  • Construction Trailer
  • Electric Lockout
  • Demco
  • 3 Inch Channel Tongue

Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Electric reverse lockout lets you back up without actuating trailer brakes
    • Solenoid activates automatically when you shift into reverse
  • Adjustable channel has 3 different mounting positions for coupler (sold separately)
  • Composite master cylinder is durable and efficient
    • Glass-reinforced nylon construction resists rust and corrosion
    • Large reservoir provides increased capacity for brake fluid
    • Automotive-style diaphragm cap creates completely enclosed system to help prevent contamination of fluid
  • Acetal copolymer lining provides smooth operation as actuator telescopes in and out
  • Breakaway included
  • Heavy-duty steel construction
  • Primed finish
  • Bolt-on or weld-on installation
    • Requires 1/2" x 4-1/2" Grade-5 bolts (not included) for bolt-on mounting
  • Made in the USA


Specs:

  • Application: trailers with hydraulic disc brakes
  • Gross towing weight: 8,000 lbs
  • Maximum tongue weight: 800 lbs
  • Channel width: approximately 3"
  • Channel height: 8"
  • Mounting: straight, 3" wide trailer tongue
  • Model number: DA91
  • 1-Year warranty


When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.


Electric Reverse Lockout

The electric reverse lockout on this trailer brake actuator is automatically activated when you shift your tow vehicle into reverse. The solenoid wires into your trailer connector - which connects to your tow vehicle - so that it can detect when you are in reverse. When your vehicle is in reverse, the solenoid ensures that the hydraulic actuator does not activate your trailer's brakes, thus allowing you to back up your rig. To use the lockout feature, you must have a 5-pole flat, 6-way round, or 7-pole trailer connector.


Adjustable Channel Design

The adjustable channel on this trailer brake actuator allows for ultimate versatility. Mount almost any type of coupler (sold separately) - from a standard ball coupler to a lunette ring or clevis attachment - to fit your specific application. In addition, the 3 mounting positions on the channel let you adjust the height of the coupler. Just place the coupler so that it matches the height of the ball mount or other hitch attachment on your tow vehicle and you will be able to tow your trailer levelly.



8759422 Demco DA91 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - Channel Center - 8,000 lbs




California residents: click here


Ratings & Reviews

4.7

10 reviews
Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on.

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Very high quality product. Super fast delivery.



by:

Heavy duty. Bigger and heavier in person. Feel confident with that trailer behind you. Worry about other things instead of your trailer.
Nice quality.



by:

Very well make Surge Brake Hitch. Excellent quality. etrailer always has what you need at a good price. Excellent company.



by:

Arrived in good condition, although box was in bad shape. Just got it and disassembled to fit up and weld on 1978 Airstream 31' Excello 500. Will have to reposition jack and possibly propane tank mounts. This trailer originally had a vacuum brake booster. will update when installed.



by:

unit is heavy duty
arrived promptly

replaced actuator on utility trailer, updated frame and axles, was time to complete with correct weight actuator,, went from 7k to 12.5k and has by pass for auto back up anti lock.. this is mcuh better than non by-pass type



by:

I received the coupler on time but was missing the reverse solenoid. My installation was a little unique do to replacing a super short Atwood unit. I also had to modify the channel as well, you may not have to for your application.



by:

Awesome on-line experience. The way it should work.

Thanks Amy


10
10

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Info for this part was:

Employee Leah B
Edited by:
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Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
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Employee Jeff D
Installed by:
Jeff D
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Dustin K
Video Edited:
Dustin K

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